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WO1998010520A3 - Frequency synthesis circuit having a charge pump - Google Patents

Frequency synthesis circuit having a charge pump Download PDF

Info

Publication number
WO1998010520A3
WO1998010520A3 PCT/IB1997/001015 IB9701015W WO9810520A3 WO 1998010520 A3 WO1998010520 A3 WO 1998010520A3 IB 9701015 W IB9701015 W IB 9701015W WO 9810520 A3 WO9810520 A3 WO 9810520A3
Authority
WO
WIPO (PCT)
Prior art keywords
current
charge pump
current sources
synthesis circuit
frequency synthesis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB1997/001015
Other languages
French (fr)
Other versions
WO1998010520A2 (en
Inventor
Wolfdietrich Geor Kasperkovitz
Cicero Silveira Vaucher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Philips Norden AB
Original Assignee
Philips Electronics NV
Philips Norden AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Electronics NV, Philips Norden AB filed Critical Philips Electronics NV
Priority to JP10512408A priority Critical patent/JPH11514830A/en
Priority to EP97933827A priority patent/EP0860054A2/en
Publication of WO1998010520A2 publication Critical patent/WO1998010520A2/en
Publication of WO1998010520A3 publication Critical patent/WO1998010520A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/089—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses
    • H03L7/0891—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses the up-down pulses controlling source and sink current generators, e.g. a charge pump
    • H03L7/0895—Details of the current generators
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
    • G05F3/02—Regulating voltage or current
    • G05F3/08—Regulating voltage or current wherein the variable is DC
    • G05F3/10—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics
    • G05F3/16—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices
    • G05F3/20—Regulating voltage or current wherein the variable is DC using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
    • G05F3/26—Current mirrors
    • G05F3/265—Current mirrors using bipolar transistors only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/089—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses
    • H03L7/0891—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses the up-down pulses controlling source and sink current generators, e.g. a charge pump
    • H03L7/0895—Details of the current generators
    • H03L7/0896—Details of the current generators the current generators being controlled by differential up-down pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Dc-Dc Converters (AREA)

Abstract

A charge pump (CP) is proposed for supplying at its output (23) a first current in response to an up-pulse and sinking a second current in response to a down-pulse, which charge pump comprises first means (200, 22, CM1) for converting the first control signal into the first current and second means (206, 208, CM2) for converting the second control signal into the second current, said first and second means comprising means (CM1, CM2) for filtering the respective control signals. It is recognized that a charge pump does not have to supply or sink current pulses which are rectangularly shaped in order for it to properly carry out its function. In the invention, the current sources supply or sink current pulses are smoothly shaped because the control signals supplied to the current sources are filtered. This causes the demands on the high frequency performance of the current sources to be greatly reduced. Consequently, relatively slow current sources may be used without the performance of the charge pump being limited by these slow current sources.
PCT/IB1997/001015 1996-09-06 1997-08-21 Frequency synthesis circuit having a charge pump Ceased WO1998010520A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP10512408A JPH11514830A (en) 1996-09-06 1997-08-21 Frequency synthesis circuit with charge pump
EP97933827A EP0860054A2 (en) 1996-09-06 1997-08-21 Frequency synthesis circuit having a charge pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP96202486 1996-09-06
EP96202486.5 1996-09-06

Publications (2)

Publication Number Publication Date
WO1998010520A2 WO1998010520A2 (en) 1998-03-12
WO1998010520A3 true WO1998010520A3 (en) 1998-05-22

Family

ID=8224359

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1997/001015 Ceased WO1998010520A2 (en) 1996-09-06 1997-08-21 Frequency synthesis circuit having a charge pump

Country Status (5)

Country Link
US (1) US5929678A (en)
EP (1) EP0860054A2 (en)
JP (1) JPH11514830A (en)
TW (1) TW363305B (en)
WO (1) WO1998010520A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100264959B1 (en) * 1997-04-30 2000-10-02 윤종용 High voltage generator
US6291977B1 (en) * 2000-03-29 2001-09-18 Nortel Networks Limited Differential current mirror with low or eliminated differential current offset
FR2817980B1 (en) * 2000-12-07 2003-02-28 St Microelectronics Sa PAIR OF COMPLEMENTARY CURRENT SOURCES WITH BIPOLAR TRANSISTORS WITH BASIC CURRENT COMPENSATION
US6657465B2 (en) * 2002-04-02 2003-12-02 Northrop Grumman Corporation Rail-to-rail charge pump circuit
JP4480547B2 (en) * 2004-11-05 2010-06-16 パナソニック株式会社 Charge pump circuit
US8553827B2 (en) * 2009-10-20 2013-10-08 Qualcomm Incorporated ADC-based mixed-mode digital phase-locked loop
JP6442262B2 (en) * 2014-12-09 2018-12-19 エイブリック株式会社 Voltage detection circuit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5208546A (en) * 1991-08-21 1993-05-04 At&T Bell Laboratories Adaptive charge pump for phase-locked loops
EP0608151A2 (en) * 1993-01-21 1994-07-27 Gennum Corporation A high speed and low drift charge pump circuit
EP0718978A1 (en) * 1994-12-23 1996-06-26 STMicroelectronics S.r.l. Differential charge pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5221911A (en) * 1991-06-21 1993-06-22 U.S. Philips Corporation Receiver having pll frequency synthesizer with rc loop filter
JPH09500254A (en) * 1994-03-07 1997-01-07 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ Adjustable resistance device with control circuit
DE69535087T2 (en) * 1994-03-11 2006-12-21 Fujitsu Ltd., Kawasaki Circuit arrangement for clock recovery

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5208546A (en) * 1991-08-21 1993-05-04 At&T Bell Laboratories Adaptive charge pump for phase-locked loops
EP0608151A2 (en) * 1993-01-21 1994-07-27 Gennum Corporation A high speed and low drift charge pump circuit
EP0718978A1 (en) * 1994-12-23 1996-06-26 STMicroelectronics S.r.l. Differential charge pump

Also Published As

Publication number Publication date
US5929678A (en) 1999-07-27
EP0860054A2 (en) 1998-08-26
TW363305B (en) 1999-07-01
JPH11514830A (en) 1999-12-14
WO1998010520A2 (en) 1998-03-12

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